export function dateTimeFormatter(date, format) {
  // 时间格式化辅助函数 date:毫秒数 format:'yyyy-MM-dd hh:mm:ss'
  if (!date || date == '') {
    return '';
  }

  if (typeof date === 'string') {
    var mts = date.match(/(\/Date\((\d+)\)\/)/);
    if (mts && mts.length >= 3) {
      date = parseInt(mts[2]);
    }
  }

  date = new Date(date);
  if (!date || date.toUTCString() == 'Invalid Date') {
    return '';
  }

  var map = {
    M: date.getMonth() + 1, //月份
    d: date.getDate(), //日
    h: date.getHours(), //小时
    m: date.getMinutes(), //分
    s: date.getSeconds(), //秒
    q: Math.floor((date.getMonth() + 3) / 3), //季度
    S: date.getMilliseconds(), //毫秒
  };

  format = format.replace(/([yMdhmsqS])+/g, function(all, t) {
    var v = map[t];
    if (v !== undefined) {
      if (all.length > 1) {
        v = '0' + v;
        v = v.substr(v.length - 2);
      }
      return v;
    } else if (t === 'y') {
      return (date.getFullYear() + '').substr(4 - all.length);
    }
    return all;
  });

  return format;
}
